Reasons to buy the i5 2500K

Is unlocked

Yes

Has a built-in GPU

Yes

In the PCMark Vantage full-system performance test, the Core i5-2500K earned an overall score of 10,271—not at all far behind the Core i7-2600K's result of 10,368, and surprisingly close (all things considered) to the 10,970 we saw with the Core i7-970—Intel's lower-end six-core LGA1366 CPU.